java - 在 Java 中将 Unicode 转换为字符串以及将字符串转换为 Unicode

Question

如何转换此字符串:该字符串包含 unicode 字符 unicodetoString("\u0064") 和字符串到 unicode，如 stringtounicode("a")？

public static String GetUnicode(String str_code) {          
String hexCode = Integer.toHexString(str_code.codePointAt(0)).toUpperCase();        
    String hexCodeWithAllLeadingZeros = "0000" + hexCode;
    String hexCodeWithLeadingZeros = hexCodeWithAllLeadingZeros
    .substring(hexCodeWithAllLeadingZeros.length() - 4);
    hexCodeWithLeadingZeros = "\\u" + hexCodeWithLeadingZeros;
    System.out.println("Unicode " + hexCodeWithLeadingZeros);
    return hexCodeWithLeadingZeros;
}    

Answer 1

要将 unicode 转换为字符串，请使用

StringEscapeUtils .unescapeJava(unicodeString)